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Is this true about new cars ?
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09-01-2009, 09:56 AM
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gtbaldini
Drives: 2010 Cyber Grey 2SS/RS LS3
Join Date: Jul 2009
Location: Albuquerque
Posts: 153
Owners Manual (if you wish to follow GM's break in) says don't go over 100 mph. Also don't exceed 4000 rpm in any one gear or downshift to a gear that would be in excess of 4000 rpm.
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